Student's t test for correlated groups really reduces to _________.
A) the sign test
B) Student's t test for single samples using difference scores
C) Students t test for independent groups
D) none of these

Question

Quizplus · Accepted Answer

The t test for correlated groups compares the means of two related samples (e.g. pre-test and post-test scores of the same group) and is equivalent to conducting a t test for a single sample using the difference scores between the two measurements. Therefore, the correct answer is B, as it is the only option that accurately describes the procedure of this type of t test.

Student's T Test for Correlated Groups Really Reduces to _________